I think they offer enough of their nicer notebooks in the U.S. The Ferrari, Travelmate 8104, and Aspire 9500 series are among their best IMO, and they're all available from U.S. etailers.
The one thing I do hate about Acer is that fact that all of their notebooks come with a std. 1 yr. warranty, and unless you want to pay for some exorbitant 3rd party warranty at Newegg, TigerDirect, or CC, you're stuck with 1 yr. of coverage.